Regex (or regexp) is known as regular expression matching of patterns, strings or characters in, for example, a large text file. Questions should be tagged as such whatever the programming language involved and the tag can also apply to command-line or graphical programs that have regex plugins or ...

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apt-get remove with wildcard removed way more than expected. why?

Last night I was trying to burn CDs. Being annoyed with k3b and choosing to use brasero instead, I went to remove k3b. I typed in: sudo apt-get remove k3b I hit tab twice and saw that I had both ...
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votes
3answers
5k views

Recommendation for Regex editor?

I asked for recommendations for Regex editors on stackoverflow a while ago. Following is one of the replies: What is "good" depends on what is most useful to you. For me, though, these are ...
2
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3answers
1k views

grep for string not preceded by another string

Is it possible, using grep, to search for instances of John Smith but exclude instances of Mr John Smith?
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2answers
7k views

Install Regex plugin for Gedit

I am using Ubuntu 12.04.I want to install Regex Search and Replace plugin for Gedit.So can some one please tell me where can I get it and install it.Any help and suggestions will be highly ...
1
vote
2answers
566 views

Has this Windows application been successfully installed via Wine?

I just installed Expresso via Wine Windows Program Loader. The installation seemed to be fine. But when I click the program item from Applications -> Wine -> Programs -> Expresso -> Expresso, the ...
0
votes
1answer
138 views

how can i use grep to find IPV4 Number in a pcap file with regx syntac?

I'm new in ubuntu. I have this IP regex '\b((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(\.|$)){4}\b' I have a network pcap file, I want to use this regex and the grep -e to find all IP address in the ...